分享一个强大的 Vue 图片编辑插件（快来试试！）
本篇文章给大家分享一款强大到没朋友的Vue图片编辑插件，可以对图片进行旋转、缩放、裁剪、涂鸦、标注、添加文本等，快来试试并收藏吧！
【相关推荐：《vue.js教程》】
最近用户提出了一个新的需求，老师可以批改学生的图片作业，需要对图片进行旋转、缩放、裁剪、涂鸦、标注、添加文本等。乍一听，又要掉不少头发。有没有功能强大的插件实现以上功能，让我有更多的时间去阻止女票双十一剁手呢？答案当然是有的。
效果展示
涂鸦
裁剪
标注
旋转
滤镜
是不是很强大！还有众多功能我就不一一展示了。那么还等什么，跟我一起用起来吧~
安装
npm i tui-image-editor // or yarn add tui-image-editor
使用
快速体验
复制以下代码，将插件引入到自己的项目中。
<template>
<div>
<div id="tui-image-editor"></div>
</div>
</template>
<script>
import "tui-image-editor/dist/tui-image-editor.css";
import "tui-color-picker/dist/tui-color-picker.css";
import ImageEditor from "tui-image-editor";
export default {
data() {
return {
instance: null,
};
},
mounted() {
this.init();
},
methods: {
init() {
this.instance = new ImageEditor(
document.querySelector("#tui-image-editor"),
{
includeUI: {
loadImage: {
path: "https://p1-juejin.byteimg.com/tos-cn-i-k3u1fbpfcp/c1d7a1feb60346449c1a64893888989a~tplv-k3u1fbpfcp-watermark.image",
name: "image",
},
initMenu: "draw", // 默认打开的菜单项
menuBarPosition: "bottom", // 菜单所在的位置
},
cssMaxWidth: 1000, // canvas 最大宽度
cssMaxHeight: 600, // canvas 最大高度
}
);
document.getElementsByClassName("tui-image-editor-main")[0].style.top = "45px"; // 图片距顶部工具栏的距离
},
},
};
</script>
<style scoped>
.drawing-container {
height: 900px;
}
</style>
可以看到活生生的图片编辑工具就出现了，是不是很简单：
国际化
由于是老外开发的，默认的文字描述都是英文，这里我们先汉化一下：
const locale_zh = { ZoomIn: "放大", ZoomOut: "缩小", Hand: "手掌", History: '历史', Resize: '调整宽高', Crop: "裁剪", DeleteAll: "全部删除", Delete: "删除", Undo: "撤销", Redo: "反撤销", Reset: "重置", Flip: "镜像", Rotate: "旋转", Draw: "画", Shape: "形状标注", Icon: "图标标注", Text: "文字标注", Mask: "遮罩", Filter: "滤镜", Bold: "加粗", Italic: "斜体", Underline: "下划线", Left: "左对齐", Center: "居中", Right: "右对齐", Color: "颜色", "Text size": "字体大小", Custom: "自定义", Square: "正方形", Apply: "应用", Cancel: "取消", "Flip X": "X 轴", "Flip Y": "Y 轴", Range: "区间", Stroke: "描边", Fill: "填充", Circle: "圆", Triangle: "三角", Rectangle: "矩形", Free: "曲线", Straight: "直线", Arrow: "箭头", "Arrow-2": "箭头2", "Arrow-3": "箭头3", "Star-1": "星星1", "Star-2": "星星2", Polygon: "多边形", Location: "定位", Heart: "心形", Bubble: "气泡", "Custom icon": "自定义图标", "Load Mask Image": "加载蒙层图片", Grayscale: "灰度", Blur: "模糊", Sharpen: "锐化", Emboss: "浮雕", "Remove White": "除去白色", Distance: "距离", Brightness: "亮度", Noise: "噪音", "Color Filter": "彩色滤镜", Sepia: "棕色", Sepia2: "棕色2", Invert: "负片", Pixelate: "像素化", Threshold: "阈值", Tint: "色调", Multiply: "正片叠底", Blend: "混合色", Width: "宽度", Height: "高度", "Lock Aspect Ratio": "锁定宽高比例", }; this.instance = new ImageEditor( document.querySelector("#tui-image-editor"), { includeUI: { loadImage: { path: "https://p1-juejin.byteimg.com/tos-cn-i-k3u1fbpfcp/c1d7a1feb60346449c1a64893888989a~tplv-k3u1fbpfcp-watermark.image", name: "image", }, initMenu: "draw", // 默认打开的菜单项 menuBarPosition: "bottom", // 菜单所在的位置 locale: locale_zh, // 本地化语言为中文 }, cssMaxWidth: 1000, // canvas 最大宽度 cssMaxHeight: 600, // canvas 最大高度 } );
效果如下：
自定义样式
默认风格为暗黑系，如果想改成白底，或者想改变按钮的大小、颜色等样式，可以使用自定义样式。
const customTheme = { "common.bi.image": "", // 左上角logo图片 "common.bisize.width": "0px", "common.bisize.height": "0px", "common.backgroundImage": "none", "common.backgroundColor": "#f3f4f6", "common.border": "1px solid #333", // header "header.backgroundImage": "none", "header.backgroundColor": "#f3f4f6", "header.border": "0px", // load button "loadButton.backgroundColor": "#fff", "loadButton.border": "1px solid #ddd", "loadButton.color": "#222", "loadButton.fontFamily": "NotoSans, sans-serif", "loadButton.fontSize": "12px", "loadButton.display": "none", // 隐藏 // download button "downloadButton.backgroundColor": "#fdba3b", "downloadButton.border": "1px solid #fdba3b", "downloadButton.color": "#fff", "downloadButton.fontFamily": "NotoSans, sans-serif", "downloadButton.fontSize": "12px", "downloadButton.display": "none", // 隐藏 // icons default "menu.normalIcon.color": "#8a8a8a", "menu.activeIcon.color": "#555555", "menu.disabledIcon.color": "#ccc", "menu.hoverIcon.color": "#e9e9e9", "submenu.normalIcon.color": "#8a8a8a", "submenu.activeIcon.color": "#e9e9e9", "menu.iconSize.width": "24px", "menu.iconSize.height": "24px", "submenu.iconSize.width": "32px", "submenu.iconSize.height": "32px", // submenu primary color "submenu.backgroundColor": "#1e1e1e", "submenu.partition.color": "#858585", // submenu labels "submenu.normalLabel.color": "#858585", "submenu.normalLabel.fontWeight": "lighter", "submenu.activeLabel.color": "#fff", "submenu.activeLabel.fontWeight": "lighter", // checkbox style "checkbox.border": "1px solid #ccc", "checkbox.backgroundColor": "#fff", // rango style "range.pointer.color": "#fff", "range.bar.color": "#666", "range.subbar.color": "#d1d1d1", "range.disabledPointer.color": "#414141", "range.disabledBar.color": "#282828", "range.disabledSubbar.color": "#414141", "range.value.color": "#fff", "range.value.fontWeight": "lighter", "range.value.fontSize": "11px", "range.value.border": "1px solid #353535", "range.value.backgroundColor": "#151515", "range.title.color": "#fff", "range.title.fontWeight": "lighter", // colorpicker style "colorpicker.button.border": "1px solid #1e1e1e", "colorpicker.title.color": "#fff", }; this.instance = new ImageEditor( document.querySelector("#tui-image-editor"), { includeUI: { loadImage: { path: "https://p1-juejin.byteimg.com/tos-cn-i-k3u1fbpfcp/c1d7a1feb60346449c1a64893888989a~tplv-k3u1fbpfcp-watermark.image", name: "image", }, initMenu: "draw", // 默认打开的菜单项 menuBarPosition: "bottom", // 菜单所在的位置 locale: locale_zh, // 本地化语言为中文 theme: customTheme, // 自定义样式 }, cssMaxWidth: 1000, // canvas 最大宽度 cssMaxHeight: 600, // canvas 最大高度 } );
效果如下：
按钮优化
通过自定义样式，我们看到右上角的 Load 和 Download 按钮已经被隐藏了，接下来我们再隐藏掉其他用不上的按钮（根据业务需要），并添加一个保存图片的按钮。
<template>
<div>
<div id="tui-image-editor"></div>
<el-button type="primary" size="small" @click="save">保存</el-button>
</div>
</template>
// ...
methods: {
init() {
this.instance = new ImageEditor(
document.querySelector("#tui-image-editor"),
{
includeUI: {
loadImage: {
path: "https://p1-juejin.byteimg.com/tos-cn-i-k3u1fbpfcp/c1d7a1feb60346449c1a64893888989a~tplv-k3u1fbpfcp-watermark.image",
name: "image",
},
menu: ["resize", "crop", "rotate", "draw", "shape", "icon", "text", "filter"], // 底部菜单按钮列表 隐藏镜像flip和遮罩mask
initMenu: "draw", // 默认打开的菜单项
menuBarPosition: "bottom", // 菜单所在的位置
locale: locale_zh, // 本地化语言为中文
theme: customTheme, // 自定义样式
},
cssMaxWidth: 1000, // canvas 最大宽度
cssMaxHeight: 600, // canvas 最大高度
}
);
document.getElementsByClassName("tui-image-editor-main")[0].style.top ="45px"; // 调整图片显示位置
document.getElementsByClassName("tie-btn-reset tui-image-editor-item help") [0].style.display = "none"; // 隐藏顶部重置按钮
},
// 保存图片，并上传
save() {
const base64String = this.instance.toDataURL(); // base64 文件
const data = window.atob(base64String.split(",")[1]);
const ia = new Uint8Array(data.length);
for (let i = 0; i < data.length; i++) {
ia[i] = data.charCodeAt(i);
}
const blob = new Blob([ia], { type: "image/png" }); // blob 文件
const form = new FormData();
form.append("image", blob);
// upload file
},
}
<style scoped>
.drawing-container {
height: 900px;
position: relative;
.save {
position: absolute;
right: 50px;
top: 15px;
}
}
</style>
效果如下：
可以看到顶部的重置按钮，以及底部的镜像和遮罩按钮都已经不见了。右上角多了一个我们自己的保存按钮，点击按钮，可以获取到 base64 文件和 blob 文件。
完整代码
<template>
<div>
<div id="tui-image-editor"></div>
<el-button type="primary" size="small" @click="save">保存</el-button>
</div>
</template>
<script>
import 'tui-image-editor/dist/tui-image-editor.css'
import 'tui-color-picker/dist/tui-color-picker.css'
import ImageEditor from 'tui-image-editor'
const locale_zh = {
ZoomIn: '放大',
ZoomOut: '缩小',
Hand: '手掌',
History: '历史',
Resize: '调整宽高',
Crop: '裁剪',
DeleteAll: '全部删除',
Delete: '删除',
Undo: '撤销',
Redo: '反撤销',
Reset: '重置',
Flip: '镜像',
Rotate: '旋转',
Draw: '画',
Shape: '形状标注',
Icon: '图标标注',
Text: '文字标注',
Mask: '遮罩',
Filter: '滤镜',
Bold: '加粗',
Italic: '斜体',
Underline: '下划线',
Left: '左对齐',
Center: '居中',
Right: '右对齐',
Color: '颜色',
'Text size': '字体大小',
Custom: '自定义',
Square: '正方形',
Apply: '应用',
Cancel: '取消',
'Flip X': 'X 轴',
'Flip Y': 'Y 轴',
Range: '区间',
Stroke: '描边',
Fill: '填充',
Circle: '圆',
Triangle: '三角',
Rectangle: '矩形',
Free: '曲线',
Straight: '直线',
Arrow: '箭头',
'Arrow-2': '箭头2',
'Arrow-3': '箭头3',
'Star-1': '星星1',
'Star-2': '星星2',
Polygon: '多边形',
Location: '定位',
Heart: '心形',
Bubble: '气泡',
'Custom icon': '自定义图标',
'Load Mask Image': '加载蒙层图片',
Grayscale: '灰度',
Blur: '模糊',
Sharpen: '锐化',
Emboss: '浮雕',
'Remove White': '除去白色',
Distance: '距离',
Brightness: '亮度',
Noise: '噪音',
'Color Filter': '彩色滤镜',
Sepia: '棕色',
Sepia2: '棕色2',
Invert: '负片',
Pixelate: '像素化',
Threshold: '阈值',
Tint: '色调',
Multiply: '正片叠底',
Blend: '混合色',
Width: '宽度',
Height: '高度',
'Lock Aspect Ratio': '锁定宽高比例'
}
const customTheme = {
"common.bi.image": "", // 左上角logo图片
"common.bisize.width": "0px",
"common.bisize.height": "0px",
"common.backgroundImage": "none",
"common.backgroundColor": "#f3f4f6",
"common.border": "1px solid #333",
// header
"header.backgroundImage": "none",
"header.backgroundColor": "#f3f4f6",
"header.border": "0px",
// load button
"loadButton.backgroundColor": "#fff",
"loadButton.border": "1px solid #ddd",
"loadButton.color": "#222",
"loadButton.fontFamily": "NotoSans, sans-serif",
"loadButton.fontSize": "12px",
"loadButton.display": "none", // 隐藏
// download button
"downloadButton.backgroundColor": "#fdba3b",
"downloadButton.border": "1px solid #fdba3b",
"downloadButton.color": "#fff",
"downloadButton.fontFamily": "NotoSans, sans-serif",
"downloadButton.fontSize": "12px",
"downloadButton.display": "none", // 隐藏
// icons default
"menu.normalIcon.color": "#8a8a8a",
"menu.activeIcon.color": "#555555",
"menu.disabledIcon.color": "#ccc",
"menu.hoverIcon.color": "#e9e9e9",
"submenu.normalIcon.color": "#8a8a8a",
"submenu.activeIcon.color": "#e9e9e9",
"menu.iconSize.width": "24px",
"menu.iconSize.height": "24px",
"submenu.iconSize.width": "32px",
"submenu.iconSize.height": "32px",
// submenu primary color
"submenu.backgroundColor": "#1e1e1e",
"submenu.partition.color": "#858585",
// submenu labels
"submenu.normalLabel.color": "#858585",
"submenu.normalLabel.fontWeight": "lighter",
"submenu.activeLabel.color": "#fff",
"submenu.activeLabel.fontWeight": "lighter",
// checkbox style
"checkbox.border": "1px solid #ccc",
"checkbox.backgroundColor": "#fff",
// rango style
"range.pointer.color": "#fff",
"range.bar.color": "#666",
"range.subbar.color": "#d1d1d1",
"range.disabledPointer.color": "#414141",
"range.disabledBar.color": "#282828",
"range.disabledSubbar.color": "#414141",
"range.value.color": "#fff",
"range.value.fontWeight": "lighter",
"range.value.fontSize": "11px",
"range.value.border": "1px solid #353535",
"range.value.backgroundColor": "#151515",
"range.title.color": "#fff",
"range.title.fontWeight": "lighter",
// colorpicker style
"colorpicker.button.border": "1px solid #1e1e1e",
"colorpicker.title.color": "#fff",
};
export default {
data() {
return {
instance: null
}
},
mounted() {
this.init()
},
methods: {
init() {
this.instance = new ImageEditor(document.querySelector('#tui-image-editor'), {
includeUI: {
loadImage: {
path: 'https://p1-juejin.byteimg.com/tos-cn-i-k3u1fbpfcp/c1d7a1feb60346449c1a64893888989a~tplv-k3u1fbpfcp-watermark.image',
name: 'image'
},
menu: ['resize', 'crop', 'rotate', 'draw', 'shape', 'icon', 'text', 'filter'], // 底部菜单按钮列表 隐藏镜像flip和遮罩mask
initMenu: 'draw', // 默认打开的菜单项
menuBarPosition: 'bottom', // 菜单所在的位置
locale: locale_zh, // 本地化语言为中文
theme: customTheme // 自定义样式
},
cssMaxWidth: 1000, // canvas 最大宽度
cssMaxHeight: 600 // canvas 最大高度
})
document.getElementsByClassName('tui-image-editor-main')[0].style.top = '45px' // 调整图片显示位置
document.getElementsByClassName(
'tie-btn-reset tui-image-editor-item help'
)[0].style.display = 'none' // 隐藏顶部重置按钮
},
// 保存图片，并上传
save() {
const base64String = this.instance.toDataURL() // base64 文件
const data = window.atob(base64String.split(',')[1])
const ia = new Uint8Array(data.length)
for (let i = 0; i < data.length; i++) {
ia[i] = data.charCodeAt(i)
}
const blob = new Blob([ia], { type: 'image/png' }) // blob 文件
const form = new FormData()
form.append('image', blob)
// upload file
}
}
}
</script>
<style scoped>
.drawing-container {
height: 900px;
position: relative;
.save {
position: absolute;
right: 50px;
top: 15px;
}
}
</style>
总结
以上就是 tui.image-editor 的基本使用方法，相比其他插件，tui.image-editor 的优势是功能强大，简单易上手。
插件固然好用，但本人也发现一个小 bug，当放大图片，用手掌拖动显示位置，再点击重置按钮时，图片很可能就消失不见了。解决办法有两个，一是改源码，在重置之前，先调用 resetZoom 方法，还原缩放比列；二是自己做一个重置按钮，点击之后调用 this.init 方法重新进行渲染。
赠人玫瑰，手有余香。如果觉得有用，就动动发财的小手，点个赞把~
更多 API 及 Demo 请参考：
github地址：https://github.com/nhn/tui.image-editor
API 及 Examples 地址：http://nhn.github.io/tui.image-editor/latest
更多编程相关知识，请访问：编程入门！！
